Answer:
1.08 * 10 ^8
Explanation:
2.4 * 10^4 * 4.5 * 10^3
Multiply the constants
10.8
Add the exponents
10^(4+3) = 10^7
Put together
10.8 * 10 ^7
Put we can only have one number in front of the decimal
Move the decimal one place to the left and add one to the exponent
1.08 * 10 ^8